Surah 43. Az-Zukhruf, Ayah 37

The downward course in evil is rapid. But the most tragic consequence is that evil persuades its victims to believe that they are pursuing good. They think evil to be their good. They go deeper and deeper into the mire, and become more and more callous. "Them" and "they" represent the generic plural of anyone who "withdraws himself from...Allah" (see last verse).